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Finding the Fourth Proportional to 707,548.70, 976,404.56 and 385,252.94

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Solution

The fourth proportional to 707,548.70, 976,404.56 and 385,252.94 is: 531,642.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,548.70 : 976,404.56 = 385,252.94 : x
  2. Step 2: Convert to fraction form
    707,548.70/976,404.56 = 385,252.94/x
  3. Step 3: Cross multiply
    707,548.70x = 976,404.56 × 385,252.94
  4. Step 4: Simplify right side
    707,548.70x = 376,162,720,561.12
  5. Step 5: Solve for x
    x = 376,162,720,561.12/707,548.70
  6. Step 6: Final answer
    x = 531,642.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.